When up thrust is equal to weight of an object, it………….
a) Sinks
b) Floats
c) Moves
d) Stops
A force which occurs when two surfaces come in contact and slows down motion while acting in
a) Opposite direction
b) Same direction
c) Same and opposite direction
d) Both a and b
Which is not a type of simple machine
a) Spring
b) Screw
c) Pulley
d) Wedge
Which of these is not an example of an inclined plane?
a) Ladder
b) Stair
c) Wall
d) Driveway
Distance covered with time called………..?
NTS PST 24/11/2019 (2:30)
a) power
b) Energy
c) Speed
d) Frequency
Force of friction can be reduce by help of ……
a) Ball bearing
b) Lubricants
c) Cushion surface
d) All of these
